Electric switch.



No. 674,207. Y Patented' may I4, 190|.

J. C. DE JANISCH. l

ELECTRIC SWITCH.

(Ayplicnton Mod Apr. 27, 1900,) (Nn Model.)

Il A\\ mma, WASHINGTON n c soV UNITED `STATES PATENT OFFICE.

JOSEPH CHARLES DE JANISCH, OF PARIS, FRANCE.

ELECTRIC SWITCH.

SPECIFICATION forming part lof Letters Patent No. 674,207, dated May 14,1901.

Application filed April 27, 1900.

To a/ZZ whom it may concern:

Beit known that I, JOSEPH CHARLES DE JANISGH, gentleman, residingat 121Avenue des Champs Elyses,'P-aris, in the Republic of France, haveinvented certain new and useful Improvements in Electric Switches, ofwhich the following is a specification.

My invention relates to an electric switch in which each contact-pieceis operated by means of two movable buttons, which project alternativelybeyond the casing of insulating material inclosing the contact-pieces.The arrangement of the said buttons, either one of which projects whenthe opposite button lies within the casing, prevents any cause ofhesitation in operating the switch either torV turning on the electriccurrent or for shutting off the same.

The invention will be fully described hereinafter and the features ofnovelty pointed out in the appended claims.

Reference is to be had to the accompanying drawings, in which- Figure lis a central vertical section of a four-button switch constructedaccording to my invention. Fig-2 `is a plan view of the same, the casingof the switch being shown in section. Fig. 3 is a vertical section atright angles to that shown in Fig. 1. Fig. 3a is a longitudinal sectionof the sliding switch.

The apparatus comprises a metal column a, rigidly iixed to a support b,made of insulating material and provided with a hole through whichpasses a rod c, capable of sliding hori- Zontally. The said rodterminates in two buttons d e, capable of projecting alternatively ateach side of a casing or coverj1 put on the support b. The rod c, ofinsulating material, is embraced by the two elastic arms g of a.4o,contact-piece fixed to the support b and to which may be connected aconducting-wire h. Two buttons rand j, passing through the casing f, arepivoted to the ends of a cross-piece It, capable of oscillating orrocking on the rod c. The cross-piece k is formed by two metal wings orparts located at each side of the column a and connected together by abearing or suitable cross-pieces. The ends of the cross-piece 7c arecapable when depressed of rubbing alternatively against the yieldingcontact-pieces m fn, connected, respectively, with the conducting-wiresp q.

Serial No. 14,596. (No model.)

The rod c carries toward its middle a metal bushing or sleeve r, whichmay be split in order to yieldingly press against the walls of the holeor bearing in the column a. The position andthe dimensions of the saidbushing are so determined that in one of the extreme positions of therod c, Fig. 3, the bushing r shall not bein contact with the piece g,while in the other extreme position of the rod c the bushing touchesboth the piece g and the column a.

The casing or coverfis held in place by a screw s, screwed into thecolumn a, and of which the head may be provided with an insulating-cap tin order to prevent any inadvertent contact with the fingers. The strokeof the rod c may be limited by stops ink any suitable manner.

The wire h being connected to any suitable source of electrical supplyand the wires p and q being connected, for example, the former, p, witha lamp and the latter, q, with a cluster of lamps or electrolier, itwill be understood that in order to transmit the current to the lamp onehas only to push therod c into the position in which the bushing rtouches the piece g, and to bring the crosspiece la into contact withthe piece m by pressing on the button t the current passes successivelythrough the parts h, g, r, 7o, m, andp and thence to the lamp. If nowthe finger is pressed on the button j, the crosspiece k is rocked, thelamp is put out, and the current is transmitted to the electrolierthrough the parts h, g, r, k, n, and q. Finally, if the rod c is broughtinto the position shown in Fig. 3 by pressing on the button e thebushing r is separated from the piece g and the current is shut off.

I claim as my inventionl. A double switch comprising a sliding switchmember and a contact adaptedto be engaged thereby, a rocking switchmember fulcrumed on said sliding member, contacts adapted to be engagedby the rocking member, and means for operating the switch members.

2. A double switch comprising a non-conducting sliding switch memberprovided with a conducting portion, a stationary contact arranged toengage the conducting portion of said switch memberor the non-conductingIOO body thereof, .according to ,the position of the sliding switch.member, a conducting switch ,member mounted to rock on the slidingswitch member and engaging the conducting portion of the sliding switchmember simultaneously with the engagement of the conducting portion Withthe Said stationary contact, and additional contacts arranged to beengaged by the rocking switch member.

3. A doubleswitch comprising a casing, a sliding switch member supportedtherein and having a non-,conducting body with a conducting portion,push-buttons attached to said sliding switch member and arranged to.project, one at a time, at opposite ends of the casing, means forcarrying an electric current to said conducting portion, a condnctingswitch melnnbermoneted to rock on the sliding switch member and arrangedto engage the conducting portion of said sliding switch member, contactsarranged to be engaged by the rocking switch member, and

pushbuttons connected with the said member at opposite sides of itsyflcrum and arranged to project from the casing, one at a time.

In testimony that I claim the foregoing as my invention I have signed myname in presenceof tw@ Subscribing Witnesses.

JOSEPH .CHARLES DE JANISCH.

Witnesses: A

. CAMILLE vBLETRY, EUGNE WATTI.

